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@ARTICLE{Durmus:826404,
      author       = {Durmus, Yasin Emre and Aslanbas, Özgür and Kayser,
                      Steffen and Tempel, Hermann and Hausen, Florian and de
                      Haart, L. G. J. and Granwehr, Josef and Ein-Eli, Yair and
                      Eichel, Rüdiger-A. and Kungl, Hans},
      title        = {{L}ong run discharge, performance and efficiency of primary
                      {S}ilicon–air cells with alkaline electrolyte},
      journal      = {Electrochimica acta},
      volume       = {225},
      issn         = {0013-4686},
      address      = {New York, NY [u.a.]},
      publisher    = {Elsevier},
      reportid     = {FZJ-2017-00632},
      pages        = {215 - 224},
      year         = {2017},
      abstract     = {Si–air batteries, unlike other resource efficient
                      metal–air batteries that were subject of investigations
                      for quite a long time, came to the focus of research only
                      recently. When operated with alkaline electrolyte, severe
                      limitations of the discharge capacities were reported, which
                      were attributed to a passivation layer on the anode. As a
                      consequence, only small fractions of the surface from
                      Si-anodes could be used for discharge. The objective of the
                      present work is to reconsider the discharge behavior of
                      Si–air cells with KOH electrolyte and to point out how a
                      discharge process can be put forward until the complete
                      anode is exhausted. Operating Si–air cells with alkaline
                      electrolyte causes substantial corrosion, which produces
                      also hydrogen gas as a reaction product. Moreover, along
                      with the dissolution of Si in KOH, condensation of silicate
                      structures in the electrolyte has been observed. Both
                      effects accelerate electrolyte loss in the cell. Therefore,
                      appropriately balancing the electrolyte supply of the
                      Si–air cell is a precondition for ongoing discharge.
                      Specifically, cells with As-doped Si-wafer anodes with 0.6
                      mm and 3.0 mm thickness were discharged in 5 M KOH
                      electrolyte at current densities up to 0.05 mA/cm2 for 260
                      and 1100 hours, respectively. The drawback is that a minimum
                      amount of electrolyte is required in order not to exceed 4 M
                      Si content, which otherwise leads to a gelation of the
                      electrolyte. Although a considerable fraction of the anode
                      material is not transformed to electrical energy owing to
                      corrosion, specific energies up to 140 Wh/kg (for 1100 h)
                      related to the total anode mass loss were realized.},
      cin          = {IEK-9},
      ddc          = {540},
      cid          = {I:(DE-Juel1)IEK-9-20110218},
      pnm          = {131 - Electrochemical Storage (POF3-131) / HITEC -
                      Helmholtz Interdisciplinary Doctoral Training in Energy and
                      Climate Research (HITEC) (HITEC-20170406)},
      pid          = {G:(DE-HGF)POF3-131 / G:(DE-Juel1)HITEC-20170406},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000393502500024},
      doi          = {10.1016/j.electacta.2016.12.120},
      url          = {https://juser.fz-juelich.de/record/826404},
}